Add "Open with <ARC-app-name>" items to the context menu

ash/renderer_context_menu/open_with_menu_controller.cc

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ash/renderer_context_menu/open_with_menu_controller.h"
+
+#include "ash/renderer_context_menu/link_handler_model.h"
+#include "ui/base/models/menu_model.h"
+
+namespace ash {
+
+OpenWithMenuController::OpenWithMenuController() : delegate_(nullptr) {}
+
+void OpenWithMenuController::SetDelegate(Delegate* delegate) {
+  delegate_ = delegate;
+}
+
+std::unique_ptr<LinkHandlerModel> OpenWithMenuController::CreateModel(
+    const GURL& url) {
+  if (!delegate_)
+    return nullptr;
+  return delegate_->CreateModel(url);
+}
+
+}  // namespace ash